From DMX-512 to ArtNet

Yesterday I posted about DMX-512 dimmer. DMX-512 is a lighting industry standard way of controlling lighting equipment.DMX-512 allows for one controller (like a lighting desk or computer) to control many lights from many manufacturers. DMX-512 fundamentally provides 512 channels of 8-bit resolution (0-255) level control(which constitue a DMX ‘universe’) using serial  RS-485 communications at 250

New chips: ESP32 and ATmega328PB

Some of my favorite small micro-controller platforms (as you might have seen if you have been reading this blog) are Arduino and ESP8266. It seems that there is going ot be some upgrades to those platforms this year. ESP32 ESP8266 chip is used to build  WiFi modules for serial-to-WiFi conversion and Internet of Things applications. ESP8266

Espressif ESP8266 WiFi-serial interface

Espressif ESP8266 WiFi-serial interface : weekend die-shot blog posting shows what is inside ESP8266 WiFi IoT chip. Die size 2050×2169 µm, half of which is occupied by transceiver and PA, 25% – on-chip memory (rough size estimations are ~300KiB), and the rest is Xtensa LX106 CPU core and other digital logic. Chip has marking ESP8089,

NodeMcu robot kit

I like  Internet of Things and robotics, so DIY NodeMCU Lua 2WD Open Source ESP8266 WiFi Smart Car Kit was a good match for this to test. DIY NodeMCU Lua 2WD Open Source ESP8266 WiFi Smart Car Kit is a WiFi RC smart car that is designed and developed based on ESP-12E from ESP8266. It

Battery powered IoT temperature logger testing

Two days I posted some pictures of my newest IoT gadget in Today’s IoT device posting.  This device was second version of my IoT temperature meter, now powered with two AA batteries. This device is built around tiny ESP8266 module I introduced in WIFI module ESP8266 for IoT article. The temperature data is read from

Today’s IoT device

This is second iteration of IoT temperature meter. Again based on ESP8266 module, but more compact. Now powered with two AA batteries. Here is view to data. Posted from WordPress for Android

IoT Temperature Meter

This is a test project to build IoT temperature meter using ESP8266 WiFi module, DS18b20 temperature sensor and nodemcu. It sends temperature data to ThingSpeak. This test is based on ESP8266 + ds18b20 + thingspeak+ nodemcu article and it’s files on GitHub plus ds18b20.lua. ESP8266 + ds18b20 + thingspeak+ nodemcu article describes how to build